<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>登陆页面</title>
    <link rel="stylesheet" href="css/common.css">
    <link rel="stylesheet" href="css/login.css">
    <script src="js/jquery.min.js"></script>
</head>

<body>
    <!-- 导航栏 -->
    <div class="nav">
        <img src="img/system.png" alt="">
        <span class="title">我的博客系统</span>
        <!-- 用来占据中间位置 -->
        <span class="spacer"></span>
        <a href="blog_list.html">主页</a>
        <a href="reg.html">注册</a>
    </div>
    <!-- 版心 -->
    <div class="login-container">
        <!-- 中间的登陆框 -->
        <div class="login-dialog">
            <h3>登陆</h3>
            <div class="row">
                <span>用户名</span>
                <input type="text" id="username" placeholder="请输入用户名">
            </div>
            <div class="row">
                <span>密码</span>
                <input type="password" id="password" placeholder="请输入密码">
            </div>
            <div class="row">
                <button id="submit" onclick="mysub()">提交</button>
            </div>
        </div>
    </div>

    <script>
        function mysub() {
            // 非空效验
            var username = jQuery("#username");
            var password = jQuery("#password");
            if (username.val() == "") {
                alert("请输入用户名!");
                username.focus();
                return;
            }
            if (password.val() == "") {
                alert("请输入密码!");
                password.focus();
                return;
            }
            // ajax 请求登录接口
            jQuery.ajax({
                url: '/user/login',
                type: 'post',
                data: {"username": username.val(), "password": password.val()},
                success: function(result) {
                    if (result != null && result.statusCode == 200 && result.data == 1) {
                        // 登录成功
                        location.href = "myblog_list.html";
                    } else if (result != null && result.statusCode == 1 && result.statusCodeDescription != null) {
                        alert(result.statusCodeDescription);
                    } else {
                        // 登录失败
                        alert("登录失败，用户名或密码输入错误，请检查");
                    }
                }

            }); 
        }

    </script>
</body>

</html>